Space Radiation Quotes

Spacemen die if they stay in one place.

My project was radiation damage of Si and Ge by energetic electrons, critical for the use of the recently developed semiconductor devices for applications in outer space.

I think a Moon base is not necessary to get to Mars, but I think it will be helpful. It would give you a chance to develop and mature some systems; long duration, deep space stuff; and you're close enough to get some help, via radio from Earth.

At two-tenths the speed of light, dust and atoms might not do significant damage even in a voyage of 40 years, but the faster you go, the worse it is--space begins to become abrasive. When you begin to approach the speed of light, hydrogen atoms become cosmic-ray particles, and they will fry the crew. ...So 60,000 kilometers per second may be the practical speed limit for space travel.

One of the major problems with long-term deep space human flight is the requirement for radiation shielding.

When I hear about a man talking about having been taken out to the Van Allen space radiation belt of space ships that were essentially the same thing as the DC-8, I've got to tell you, I mean, if we're talking about this man's credibility, that certainly raises some questions in my mind about his credibility.

Human beings are fragile things, and for the period of time it takes to get them to Mars and back, you have dangerous radiation from the sun and the galaxy. We have to think about issues like that.

Mars does not have an atmosphere and does not have a magnetic field today, so the planet doesn't have the protection from radiation that our atmosphere and magnetic fields provide us on Earth.

If you go on a journey to Mars and get into deep space, there is several hundred times, maybe 300 times the radiation.

Basically, most good science in space flight has to do with the behavior of the human body in space. That is where we are lacking info, and where info can only be obtained by flying in space.

The life expectancy of people going to Mars may be decreased by the higher level of radiation that they receive.

I'd like to be proven wrong on the difficulty of handling the medical side-effects of long term exposure to deep space (both microgravity induced illnesses and radiation damage).

One of the biggest concerns about going out beyond lower Earth orbit is the radiation. We find that exercise seems to counteract a lot of the negative effects of space flight, like bone loss and muscle atrophy and cardiovascular systems issues. We exercise two hours a day on the station, which is a huge hit out of your day. It's great for staying in shape, but you know, it cuts into the productivity of the crew and if you look at how expensive it is to get a crew into space, if we can keep them healthy and have them exercise, but spend less time doing it, we can get more done.

Adaption of the human body in space is not yet mastered. As soon as you hit space, you feel your body is going through a period of mutation. There's no blood in your head; you have a hard time swallowing. We're not born to naturally be in space.

A radio telescope pointing at the sky receives radiation not only from space, but also from other sources including the ground, the earth's atmosphere, and the components of the radio telescope itself.

There's a world of insights to be gained into human health and disease by understanding how gravity and space radiation influence biology.

Sequencing DNA on the ISS will enable NASA to see what happens to genetic material in space in real time, rather than looking at a snapshot of DNA before launch and another snapshot of DNA after launch and filling in the blanks.

One thing we've learned about space is that the human body starts to fall apart after relatively short exposures to microgravity.